merge 2.0.2 into 2.0.3 (#2917)

Co-authored-by: shige <shige@baidu.com>

fastdeploy/entrypoints/openai/api_server.py

@@ -24,7 +24,7 @@ import zmq
 from fastapi import FastAPI, Request
 from fastapi.responses import JSONResponse, Response, StreamingResponse
 from prometheus_client import CONTENT_TYPE_LATEST
-from fastdeploy.metrics.trace_util import inject_to_metadata
+from fastdeploy.metrics.trace_util import inject_to_metadata,instrument
 
 from fastdeploy.engine.args_utils import EngineArgs
 from fastdeploy.engine.engine import LLMEngine
@@ -141,6 +141,7 @@ async def lifespan(app: FastAPI):
 
 
 app = FastAPI(lifespan=lifespan)
+instrument(app)
 
 
 # TODO 传递真实引擎值 通过pid 获取状态
@@ -397,11 +398,6 @@ def launch_controller_server():
     """Controller server running the sub thread"""
     if args.controller_port < 0:
         return
-    
-    if not is_port_available(args.host, args.controller_port):
-        raise Exception(
-            f"The parameter `controller_port`:{args.controller_port} is already in use."
-        )
 
     if not is_port_available(args.host, args.controller_port):
         raise Exception(